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1. 发明申请

WO2013037849A1 LABYRINTH SEAL 审中-公开
公开(公告)号：WO2013037849A1
公开(公告)日：2013-03-21
申请号：PCT/EP2012/067871
申请日：2012-09-12
申请人： ALSTOM TECHNOLOGY LTD , BRICAUD, Cyrille , STEIGER, Ulrich Robert , HEIDECKE, Axel , SIMON-DELGADO, Carlos
发明人： BRICAUD, Cyrille , STEIGER, Ulrich Robert , HEIDECKE, Axel , SIMON-DELGADO, Carlos
IPC分类号： F16J15/447 , F01D11/02
CPC分类号： F01D11/02 , F01D11/025 , F05D2300/50212 , F16J15/445 , F16J15/4472
摘要： A labyrinth seal (25,...,27), for sealing the annular interspace (11) between the rotor (12) and the stator (10) of a steam turbine or gas turbine, comprises a multiplicity of sealing strips (13) which are arranged in series in the axial direction, are fastened on the stator (10) and project into the interspace (11), which sealing strips interact, with sealing effect, with rotor-side sealing elements (14, 19) which are arranged in a staggered manner. With such a labyrinth seal (25,...,27), an improved sealing effect is achieved by the sealing strips (13) in the cold installed state being offset in relation to a symmetrical position, wherein the offset has the reverse direction and the same amount as the distance (29) by which the sealing strip (13) is displaced relative to adjacent rotor-side sealing elements (14, 19) as a result of thermal expansions of the stationary and rotating components and support structure when being heated from the cold installed state to a hot steady-state operating condition.
摘要翻译：用于密封蒸汽轮机或燃气轮机的转子（12）和定子（10）之间的环形空间（11）的迷宫式密封件（25，...，27）包括多个密封条（13）在轴向上串联布置的定子（10）被固定在定子（10）上并突出到空隙（11）中，密封条与密封效应相互作用，转子侧密封元件（14,19）布置以交错的方式。通过这种迷宫式密封（25，...，27），通过在冷安装状态下的密封条（13）相对于对称位置偏移来实现改进的密封效果，其中偏移具有相反的方向，并且与加热时固定和旋转部件和支撑结构的热膨胀的结果相比，密封条（13）相对于相邻的转子侧密封元件（14,19）移动的距离（29）相同的量从冷安装状态到热稳态运行状态。

2. 发明公开

EP2756212A1 LABYRINTH SEAL 有权转让
标题翻译：迷宫式密封
公开(公告)号：EP2756212A1
公开(公告)日：2014-07-23
申请号：EP12758855.6
申请日：2012-09-12
申请人： Alstom Technology Ltd
发明人： BRICAUD, Cyrille , STEIGER, Ulrich Robert , HEIDECKE, Axel , SIMON-DELGADO, Carlos
IPC分类号： F16J15/447 , F01D11/02
CPC分类号： F01D11/02 , F01D11/025 , F05D2300/50212 , F16J15/445 , F16J15/4472
摘要： A labyrinth seal (25,...,27), for sealing the annular interspace (11) between the rotor (12) and the stator (10) of a steam turbine or gas turbine, comprises a multiplicity of sealing strips (13) which are arranged in series in the axial direction, are fastened on the stator (10) and project into the interspace (11), which sealing strips interact, with sealing effect, with rotor-side sealing elements (14, 19) which are arranged in a staggered manner. With such a labyrinth seal (25,...,27), an improved sealing effect is achieved by the sealing strips (13) in the cold installed state being offset in relation to a symmetrical position, wherein the offset has the reverse direction and the same amount as the distance (29) by which the sealing strip (13) is displaced relative to adjacent rotor-side sealing elements (14, 19) as a result of thermal expansions of the stationary and rotating components and support structure when being heated from the cold installed state to a hot steady-state operating condition.

3. 发明授权

EP2756212B1 Labyrinth seal 有权转让
标题翻译： Labyrinthdichtung
公开(公告)号：EP2756212B1
公开(公告)日：2015-12-16
申请号：EP12758855.6
申请日：2012-09-12
申请人： ALSTOM Technology Ltd
发明人： BRICAUD, Cyrille , STEIGER, Ulrich Robert , HEIDECKE, Axel , SIMON-DELGADO, Carlos
IPC分类号： F16J15/447 , F01D11/02
CPC分类号： F01D11/02 , F01D11/025 , F05D2300/50212 , F16J15/445 , F16J15/4472

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